Hello everyone,
I would like to make a conclusion about the problem with WiFi. I have read few topics about this problem.
http://forum.mikrotik.com/t/slow-wifi-mikrotik-wap/110207/1
http://forum.mikrotik.com/t/wirelles-can-over-25mb-of-download/109811/1
http://forum.mikrotik.com/t/xiaomi-phone-low-wifi-tx-rate/93622/1
http://forum.mikrotik.com/t/r11e-2hpnd-tx-rate-cant-go-above-54mbps-with-phones/88934/1
Everybody tells that some devices connected to Wi-Fi 2.4GHz have low speed on download and TX rate on Mikrotik shows only 54Mbps. In the same time RX rate is ok (65-300Mbps depend on client device).
I wrote to Mikrotik support and received a reply:
currently we don’t have clear solution and road map for this fix.
We can suggest to use 20/40mhz-Ce channel width or even use 20MHz channels.
In eC mode extension comes before control, that may disturb correct work on some wireless devices.
Of course suggestion is about nothing.
The earliest message about the problem was at Sat Jun 20, 2015 3:21 am
http://forum.mikrotik.com/t/r11e-2hpnd-tx-rate-cant-go-above-54mbps-with-phones/88934/1
infans, wrote :
Wed Sep 13, 2017 1:45 pm
We need to invest a lot of time to resolve this, it is hard to say when it will happen.
First massage Desember 2015. Is it not “a lot of time”?
http://forum.mikrotik.com/t/xiaomi-phone-low-wifi-tx-rate/93622/1 comment number 23, 24 and 35
I absolutely agree with “infans”. Becomes 2018 year and still nothing. The latest version of firmware and ROS 6.41.2 have the same problem.
One of answers from Mikrotik support was:
Tue Sep 12, 2017 9:00 am
Yes, some low end chinese phones have such issues. I suggest for now to use better phones, since we can’t solve this issue quickly.
http://forum.mikrotik.com/t/xiaomi-phone-low-wifi-tx-rate/93622/1 comment number 21
I tried to make a list of devices there was a problem:
Asus Zenfone 3
Chuwi Hi8
Google Nexus 4
Google Nexus 5
HTC One M9
Huawei P9 lite
Lenovo P2
Lenovo TAB 2 X30L
Letv x500
Moto Z2 Play
OnePlusX
Redmi Note 3
Redmi Note 4G
Redmi Note 5
Samsung Galaxy XCOVER 4
Samsung S7
Sony Xpera Z Ultra
Xiaomi Redmi note 2 prime.
tablet LENOVO YOGA 2
tablets Asus ME400C
Don’t think that phones like Samsung S7, Google Nexus 5, HTC One M9 or Sony Xpera Z Ultra are “some low end Chinese phones”
The problem present at almost all routers with only 2.4GHz module. Mikrotik support confirmed this and told that there aren’t problems on routers with 5GHz AC Wi-Fi module. However i tried with hAP AC lite and there is the same problem.
Not a long time ago becomes a new model Wi-Fi AP: “cAP AC”. I hasten to inform that Wi-Fi works fine.
Dear Mikrotik experts, on behalf of all Mikrotik fans, please take care of solving the problem.
With best regards.